Unable to run EAF on NixOS under Sway

**Describe the bug**
Attempting to use EAF under NixOS results in EAF buffers appearing blank. For example, when trying to use `eaf-open-browser`, the resulting buffer is blank.

**To Reproduce**
1. Add the following to your NixOS config (derived from the wiki page):

```nix
environment.variables = {
QT_QPA_PLATFORM_PLUGIN_PATH = "${pkgs.qt6.qtwayland.outPath}/lib/qt-6/plugins/platforms";
};

environment.systemPackages = with pkgs; [
git
nodejs
wmctrl
jshon
aria
(python3.withPackages (p: with p; [
pandas
requests
pyqt6 sip qtpy qt6.qtwebengine epc lxml pyqt6-webengine
pysocks
pymupdf
markdown
]))
];
```

2. Clone and then install EAF with `./install-eaf.py --ignore-core-deps`
3. Load EAF into Emacs as instructed and then `M-x eaf-open-browser`.

**Expected behavior**
EAF renders correctly.

**Versions (please complete the following info):**
- Distro and DE/WM: NixOS + Sway
- Versions of Dependencies:
- Python 3.10.9
- PyQt6 6.4.0
- jshon 20131105
- wmctrl 1.07
- qtbase 6.4.1
- qtwayland 6.4.1
- M-x emacs-version: GNU Emacs 30.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.35, cairo version 1.16.0)

**Error logs**
```
qt.qpa.wayland: Failed to load client buffer integration: "wayland-egl"
qt.qpa.wayland: Available client buffer integrations: QList()
qt.webenginecontext:

GL Type: disabled
Surface Type: DefaultRenderableType
Surface Profile: NoProfile
Surface Version: 2.0
QSG RHI Backend: OpenGL
Using Supported QSG Backend: yes
Using Software Dynamic GL: no
Using Multithreaded OpenGL: no

Init Parameters:
* application-name eaf.py
* browser-subprocess-path /nix/store/4wka7snl0hvapzbzskj07y99vn27crs7-qtwebengine-6.4.1/libexec/QtWebEngineProcess
* disable-features ConsolidatedMovementXY,InstalledApp,BackgroundFetch,WebOTP,WebPayments,WebUSB,PictureInPicture
* disable-gpu
* disable-setuid-sandbox
* disable-speech-api
* enable-features NetworkServiceInProcess,TracingServiceInProcess
* enable-threaded-compositing
* in-process-gpu
* use-gl disabled

QRhiGles2: Failed to create temporary context
QRhiGles2: Failed to create context
Failed to create QRhi for QBackingStoreRhiSupport
QRhiGles2: Failed to create temporary context
QRhiGles2: Failed to create context
Failed to create QRhi for QBackingStoreRhiSupport
QQuickWidget: Failed to get a QRhi from the top-level widget's window
QRhiGles2: Failed to create temporary context
QRhiGles2: Failed to create context
Failed to create QRhi for QBackingStoreRhiSupport
QQuickWidget: Failed to get a QRhi from the top-level widget's window
QQuickWidget::resizeEvent() no QRhi
QQuickWidget: Attempted to render scene with no rhi
No suitable graphics backend found

Error with Permissions-Policy header: Origin trial controlled feature not enabled: 'interest-cohort'.
QQuickWidget: Attempted to render scene with no rhi
Error with Permissions-Policy header: Origin trial controlled feature not enabled: 'interest-cohort'.
[EAF] Browser https://duckduckgo.com/ loading time: 3.0081546306610107s
```

**Screenshots**
N/A

**Additional context**
The reason for setting `QT_QPA_PLATFORM_PLUGIN_PATH` is as described on the NixOS wiki page, albeit for the Wayland platform plugin rather than xcb. I know this is more of a NixOS problem than EAF's fault, but I'd love to try out EAF on NixOS and I'm stuck on Wayland for HiDPI. Thanks!